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arXiv research

A locally-built, LLM-digested index of recent arXiv papers in quant finance, geometry/topology, and statistical ML — keyword search served straight from SQLite on this machine.

169,341 papers · 148 categories

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12.5%25.0%37.5%50.0% · Jan 199419922001200920182026
48 results for M2-M5 intersections

The paper refines large N duality for knots using M-theory and string theory.

problem Understanding refined Chern-Simons invariants of knots.
method Formulating large N duality in refined Chern-Simons theory with torus knots, studying refined BPS states in M-theory, and relating to Type IIA string theory.
result The duality predicts graded dimensions of cohomology groups of moduli spaces of M2-M5 bound states associated to torus knots in the resolved conifold.

Generalizes intersection product for PL pseudomanifolds, proving duality.

problem Proving duality between intersection homology and cohomology products.
method Generalizes intersection product for PL pseudomanifolds, sheafifies the product, and corrects a proof of Poincaré duality.
result Establishes duality between intersection homology and cohomology products.

The paper examines how closed curves on surfaces intersect and how this intersection determines the curves.

problem Determining closed curves on surfaces based on their intersections.
method Constructing and studying kk-equivalent curves, analyzing intersections with other curves.
result Curves are determined by their intersections with all other curves, but non-simple curves require infinitely many intersections to distinguish.

3-manifold triangulation can be reconstructed from its intersection matrix.

problem Reconstructing the triangulation of 3-manifolds from their intersection matrix.
method Using the intersection matrix of a simplicial complex to determine the triangulation of a 3-manifold up to isomorphism.
result The intersection matrix is sufficient to determine the triangulation of a 3-manifold up to isomorphism.

The paper finds diffeomorphic complex intersections with distinct Hodge numbers.

problem Identifying complex intersections with different Hodge numbers.
method Provided three pairs of 3-dimensional and one pair of 5-dimensional complex complete intersections, all diffeomorphic but with different Hodge numbers.
result Diffeomorphic complex intersections can have different Hodge numbers.

Conditions for curves on a torus with specific pairwise intersections.

problem Finding curves on a torus with prescribed pairwise intersections.
method Necessary and sufficient conditions for curves on a torus with given pairwise intersections.
result Necessary and sufficient conditions for the existence of curves on a torus with specific pairwise intersections.

Study properties of self-similar continua with finite intersection property.

problem Characterize self-similar continua with finite intersection property.
method Prove intersection graph criterion, finite order theorem, and parameter matching theorem.
result All Jordan arcs starting from a intersection point in such continuum on a plane should have the same slope parameter at that point.

Paper predicts pedestrian trajectories at intersections with varying geometries.

problem Accurately predicting pedestrian trajectories at intersections with different geometries.
method Utilizes contravariant components of trajectories in curbside coordinate system and ASNSC formulation.
result Improves prediction accuracy by 7.2% in same train and test intersections.

Extended Birman-Series result to geodesics with infinitely many self-intersections.

problem Classifying geodesics with infinitely many self-intersections on hyperbolic surfaces.
method Defined a self-intersection function and extended the Birman-Series result to sets with bounded self-intersection functions.
result Same conclusion as Birman-Series for geodesics with self-intersection functions in o(l2)o(l^2).

By considering a (not necessarily locally-flat) PL knot as the singular locus of a PL stratified pseudomanifold, we can use intersection homology theory to define intersection Alexander polynomials, a generalization of the classical Alexander polynomial invariants for smooth or PL locally-flat knots. We show that the i…

2003-07-10abs ↗pdf ↗

James McClure recently showed that the domain for the intersection pairing of PL chains on a PL manifold MM is a subcomplex of C(M)C(M)C_*(M)\otimes C_*(M) that is quasi-isomorphic to C(M)C(M)C_*(M)\otimes C_*(M) and, more generally, that the intersection pairing endows C(M)C_*(M) with the structure of a partially-defined commutati…

2008-08-12abs ↗pdf ↗

Study on shortest geodesics with self-intersections on hyperbolic surfaces.

problem Finding shortest closed geodesics with a fixed number of self-intersections.
method Investigated minimal length geodesics with at least kk self-intersections, proving upper bounds and asymptotic behavior.
result Self-intersection numbers are bounded by a linear function of kk for any hyperbolic surface, and asymptotically like kk in the presence of cusps.

The paper establishes isomorphisms between different versions of intersection homology duality and products.

problem Comparing and relating different versions of intersection homology duality and products.
method Sheaf-theoretic and singular chain methods, PL pseudomanifolds, and de Rham isomorphism.
result Isomorphisms between sheaf-theoretic and singular intersection homology duality and products.

The paper extends intersection theory for b-divisors, proving monotonicity and volume inequalities.

problem Intersection theory for b-divisors and monotonicity of intersection products.
method Developed general intersection theory of nef b-divisors, defined restricted volume, proved monotonicity.
result Proved quantitative monotonicity of intersection product and new volume inequalities.

Study intersection polynomials of long virtual knots with supporting genera.

problem Characterize long virtual knots using geometric invariants.
method Define and analyze 11- and 22-supporting genera, and use them to filter long virtual knots.
result Provide complete realizability criteria for all twelve intersection polynomials.

Paper explores topological invariance in torsion-sensitive intersection homology.

problem Torsion-sensitive intersection homology's topological invariance.
method Analogous to classical intersection homology, investigates invariance of sheaf complexes.
result Provides torsion-sensitive versions of existing invariance theorems and new results.

New method bounds intersections of exact Lagrangians in cotangent bundles.

problem Counting intersections of exact Lagrangian submanifolds in cotangent bundles.
method Sheaf quantization in Tamarkin's category for clean and degenerate intersections.
result Cardinality of intersections is bounded by sheaf Hom spaces.

The paper tackles intersectional fairness in machine learning, proposing methods to assess and mitigate bias.

problem Achieving optimal predictive performance is not enough; fairness with respect to multiple sensitive attributes is crucial.
method The paper introduces a comprehensive framework for auditing and achieving intersectional fairness in classification problems, including metrics, estimation methods, and post-processing techniques.
result The proposed methods can robustly estimate and mitigate intersectional bias in classification models without compromising predictive performance.

Study the intersection of positive closed currents using tangent currents and King's residue formula.

problem Investigate the intersection of positive closed currents in complex manifolds.
method Employ tangent currents and King's residue formula to establish a natural condition for intersection.
result Derive an integral representation of the intersection of positive closed currents.

New method for decomposing surfaces with minimal intersecting filling pairs.

problem Decomposing surfaces with minimal intersecting filling pairs.
method Explicit algebraic means to determine homeomorphism class and decomposition criteria.
result Explicit means to determine homeomorphism class and decomposition criteria for surfaces with minimally intersecting filling pairs.

Unified quantum invariants via intersections of embedded Lagrangians.

problem Unified quantum invariants for Uq(sl(2))U_q(sl(2)).
method State sum of Lagrangian intersections in configuration spaces.
result Recovery of coloured Jones and Alexander polynomials.

Positivity of intersections in 4-manifolds leads to taming symplectic structures.

problem Taming symplectic structures in almost complex 4-manifolds.
method Proof of positivity of intersections of pseudoholomorphic curves.
result Positivity of intersections is stable and leads to taming symplectic structures.

The paper explores intersectional fairness in machine learning, proving bounds on it.

problem Intersectional fairness in machine learning, especially when multiple protected attributes are involved.
method Statistical analysis and bounds on intersectional fairness, leveraging marginal fairness.
result Theoretical bounds on intersectional fairness can be computed from marginal fairness and other statistical quantities.

Proves a conjecture about Lagrangian intersections using new theory.

problem Homological Arnol'd conjecture on Lagrangian intersections.
method New Lagrangian Ljusternik-Schnirelman theory and fundamental quantum factorizations.
result Uniform lower bounds on Lagrangian intersection numbers.

The paper proves the exact number of singular points in the intersection of convex shapes.

problem Determining the exact number of singular points in the intersection of convex shapes.
method Analyzing the intersections of n translates of a strictly convex, smooth, convex body in the Euclidean plane.
result The intersection of n translates of a convex body has exactly n points of singularity along its boundary.

Proves intersection properties of minimal hypersurfaces in various spaces.

problem Intersection properties of minimal hypersurfaces in different geometric settings.
method Two approaches: classifications of stable minimal hypersurfaces and conformal change with comparison geometry.
result Intersection properties for minimal hypersurfaces in specific geometric settings, including free boundary minimal hypersurfaces.

The paper extends the avoidance principle for mean curvature flows, proving new intersection dimension monotonicity results.

problem Understanding the behavior of intersections in mean curvature flows.
method Proving new intersection dimension monotonicity results for mean curvature flows, Brakke flows, and level set flows.
result The dimension of the intersection of mean curvature flows is non-increasing over time.

Study joins and intersections of subgroups in free groups, disproving and repairing a lemma.

problem Disproving and repairing a lemma on joins and intersections of subgroups in free groups.
method Analyzing graphs of joins and intersections of finitely generated subgroups of a free group.
result Showed how to disprove and repair a lemma of Imrich and Müller on these graphs.